FIELD: technological processes; transportation.
SUBSTANCE: both device variants include turbine with blades, case with jet nozzles and holes for working agent outlet under pressure onto turbine blades, as well as housing and nosepiece with cutting edges. First variant features cylindrical turbine head with frictionless bearing and gland inside, the turbine is equipped with a cap functioning as an oil-can, and between housing and turbine there is a gap for working agent outlet and prevention of turbine friction against housing. Second variant also features cylindrical turbine head with frictionless bearing and gland inside and a cap functioning as an oil-can, but the housing is fixed on the turbine head. The device is particularly efficient for cleaning severely jammed and overgrown sewers long out of use. The device operates within wide pressure range from 30 to 200 atmospheres.
EFFECT: improved reliability; prolonged life span; improved repair convenience; reduced friction factor and performance index.
4 cl, 2 dwg
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